Ubiquiti UniFi 27V 250W Power Supply (UACC-PSU-27V-250W)

The Ubiquiti UACC-PSU-27V-250W is a hot-swappable, high-efficiency AC/DC power supply module engineered specifically for use with Ubiquiti’s UISP Power Pro (UISP-P-Pro) system. Designed to deliver consistent, stable power in mission-critical deployments, this module is an essential component for network operators looking to ensure system redundancy, scale capacity, or perform seamless maintenance without interrupting service.

Delivering a maximum output of 250W, this power supply provides 27V DC at 9.3A, perfectly suited for UISP devices and compatible infrastructure components that rely on high-voltage DC input. The power supply is integrated into the UISP-P-Pro’s modular bay system, where it can function either as the primary power source or as a secondary module for load sharing and redundancy. With dual PSU slots available in the UISP-P-Pro, the UACC-PSU-27V-250W allows network operators to deploy a second unit for failover protection or to increase the available power budget up to 500W.

This AC/DC module supports a wide input voltage range of 100–240V AC, using a standard IEC320 C14 connector for flexible integration into different power systems worldwide. Its auto-sensing capability allows it to adapt to voltage variations, ensuring stable operation even in environments with less predictable electrical infrastructure. The ability to hot-swap the module—replace or add it without powering down the system—makes it especially valuable for high-availability network deployments where uptime is critical.

In terms of physical design, the UACC-PSU-27V-250W is compact and thermally optimized to operate efficiently under a variety of conditions. It supports an operating temperature range of -20°C to 50°C, enabling deployment in both indoor rack cabinets and outdoor enclosures with temperature control. The internal circuitry is built to enterprise-grade standards, providing reliable power conversion and protection features that defend against overcurrent, short-circuiting, and overheating.

The power supply is also fully monitored and managed through the UISP application, Ubiquiti’s centralized management platform. This integration allows administrators to track real-time voltage, current, and power status, receive alerts for anomalies, and plan maintenance proactively. Combined with the UISP-P-Pro, the power module plays a key role in delivering network resilience and simplifying infrastructure management.

In summary, the Ubiquiti UACC-PSU-27V-250W is a purpose-built, hot-swappable 250W power supply that enhances the performance and reliability of UISP Power Pro deployments. With high output capacity, wide AC input range, and UISP monitoring integration, it is ideal for service providers and enterprises that demand continuous, secure, and manageable power delivery across their networking infrastructure.